cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A293887 Number of sets of nonempty words with a total of n letters over senary alphabet containing the sixth letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

Table of values

n a(n)
6 1
7 7
8 49
9 268
10 1448
11 7228
12 35878
13 172470
14 828380
15 3924415
16 18627313
17 87940196
18 416581962
19 1971018227
20 9364427840
21 44535275966
22 212749669917
23 1018545160923
24 4898593478484
25 23625691956720
26 114460931725922
27 556278543737430
28 2715406810871312
29 13298453769286699

List of values

[1, 7, 49, 268, 1448, 7228, 35878, 172470, 828380, 3924415, 18627313, 87940196, 416581962, 1971018227, 9364427840, 44535275966, 212749669917, 1018545160923, 4898593478484, 23625691956720, 114460931725922, 556278543737430, 2715406810871312, 13298453769286699]